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90 Grand Marq won't start!

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    #16
    fi the part is under warranty from the installer, you shouldn't have to pay anything to replace it again. Check your receipt to make sure though. some shops only do 60-90 day warranties.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

    Originally posted by gadget73
    ... and it should all work like magic and unicorns and stuff.

    Originally posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

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      #17
      It's a real short section of hose inside the tank like in this picture:

      Click image for larger version

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      click for larger view.
      Vic

      ~ 1989 MGM LS Colony Park - Large Marge
      ~ 1998 MGM LS - new DD
      ~ 1991 MGM LS "The Scab"
      ~ 1991 MGM GS "The Ice Car"

      Comment


        #18
        vic- that's what I thought.

        sly- I didn't know warranties on car parts worked like that. Well I'll have to check my reciept then if it comes to that. Oh and I know what a relay is now...

        Thanks again for your quick responses guys, means a lot.

        Comment


          #19
          The relay is only a couple bucks, and its very possible the fuel pump or ECM relay could cause this. The ECM relay has to engage for the fuel pump to operate. Both of those sockets also can get crusty, so looking at the wiring is worth doing.
          86 Lincoln Town Car (Galactica).
          5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

          91 Lincoln Mark VII LSC grandpa spec white and cranberry

          1984 Lincoln Continental TurboDiesel - rolls coal

          Originally posted by phayzer5
          I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

          Comment


            #20
            I think you have plenty of evidence to support the fact that it is NOT the hose that I was talking about being split.
            If it was that hose split the issue shouldn't be intermittent.
            Also you mentioned that you did not hear the fuel pump when you last had this issue which points at relays, wiring, or connections like gadget mentioned.
            If all the wiring, connections, and relays check out, then it could just be the fuel pump gone bad already like sly mentioned. As new as it is, it shouldn't be failing already but it is possible.
            Vic

            ~ 1989 MGM LS Colony Park - Large Marge
            ~ 1998 MGM LS - new DD
            ~ 1991 MGM LS "The Scab"
            ~ 1991 MGM GS "The Ice Car"

            Comment


              #21
              I've had 2 fuel pump shut off issues in 'Stangs, I imagine the Panther cars have them also...



              87 Ford LTD Crown Victoria Country Squire Station Wagon. 4.10's, Repacked Trac Loc, Boxed LCA's, Explorer Intake, 65mm T-body, 'Stang Cam, 'Stang Air tube, K&N, GT-40X Heads, 1" Spacer, 1 5/8 BBK's, 2.5" Pypes X-pipe w/high flow cats, Single Chamber Thunderbolts, B&M 'vertor, Po-lice Swaybars.

              91 Mercury Grand Marquis Colony Park Station Wagon. K-Code, 4.10's, Repacked Trac Loc, MK VII LSC Engine, 'Stang Upper Intake, Stang Air Tube, K&N, 65 mm T-Body, 'Stang Headers, 'Stang Cat Pipe,'Stang Torque Convertor, 2 Chamber Thunderbolts.

              Comment


                #22
                I've had issues with the fuel pump shut off switch on 2 'Stangs, I imagine the Panthers have tbem as well....



                87 Ford LTD Crown Victoria Country Squire Station Wagon. 4.10's, Repacked Trac Loc, Boxed LCA's, Explorer Intake, 65mm T-body, 'Stang Cam, 'Stang Air tube, K&N, GT-40X Heads, 1" Spacer, 1 5/8 BBK's, 2.5" Pypes X-pipe w/high flow cats, Single Chamber Thunderbolts, B&M 'vertor, Po-lice Swaybars.

                91 Mercury Grand Marquis Colony Park Station Wagon. K-Code, 4.10's, Repacked Trac Loc, MK VII LSC Engine, 'Stang Upper Intake, Stang Air Tube, K&N, 65 mm T-Body, 'Stang Headers, 'Stang Cat Pipe,'Stang Torque Convertor, 2 Chamber Thunderbolts.

                Comment


                  #23
                  Originally posted by mitymerc View Post
                  I've had issues with the fuel pump shut off switch on 2 'Stangs, I imagine the Panthers have tbem as well....
                  The switch in the trunk? (inertia switch I think it's called, I could be wrong on that)
                  Vic

                  ~ 1989 MGM LS Colony Park - Large Marge
                  ~ 1998 MGM LS - new DD
                  ~ 1991 MGM LS "The Scab"
                  ~ 1991 MGM GS "The Ice Car"

                  Comment


                    #24
                    Originally posted by VicCrownVic View Post
                    The switch in the trunk? (inertia switch I think it's called, I could be wrong on that)
                    Yes, the proper name couldn't be found in my mental database.



                    87 Ford LTD Crown Victoria Country Squire Station Wagon. 4.10's, Repacked Trac Loc, Boxed LCA's, Explorer Intake, 65mm T-body, 'Stang Cam, 'Stang Air tube, K&N, GT-40X Heads, 1" Spacer, 1 5/8 BBK's, 2.5" Pypes X-pipe w/high flow cats, Single Chamber Thunderbolts, B&M 'vertor, Po-lice Swaybars.

                    91 Mercury Grand Marquis Colony Park Station Wagon. K-Code, 4.10's, Repacked Trac Loc, MK VII LSC Engine, 'Stang Upper Intake, Stang Air Tube, K&N, 65 mm T-Body, 'Stang Headers, 'Stang Cat Pipe,'Stang Torque Convertor, 2 Chamber Thunderbolts.

                    Comment


                      #25
                      I have seen intermittent pumps come out of the tank with the push-on terminal disconnected or poorly crimped before. That wouldn't be my first thing to look at, but its not impossible the wire is loose on the pump itself inside the tank.
                      86 Lincoln Town Car (Galactica).
                      5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

                      91 Lincoln Mark VII LSC grandpa spec white and cranberry

                      1984 Lincoln Continental TurboDiesel - rolls coal

                      Originally posted by phayzer5
                      I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

                      Comment


                        #26
                        See this gets me wondering now because in the morning when it wouldn't start and after work when it stalled and wouldn't start I crawled down and felt the fuel pump housing and jiggled the wire connection around a little bit. I didn't think that my "wire jiggling" would have made a difference but both times it fired up right after. IDK, probably nothing.

                        I'm having trouble finding this fuel pump relay. I can't find anything in my ford manual about it, and my haynes manual is worthless. I'm guessing I need the electrical manual? I don't have one of those yet.

                        I disconnected the little plastic relay box on the inner driver side fender and pulled off the cover to find three equal and practically identical relays with no labels explaining which are which. Random person from an old thread posted that it was the one in the middle on his car so I said fuck it and replaced the one in the middle. Everything works... still don't know if thats the one though lol.

                        In the meantime I'll try cleaning out the IAC and see if that helps anything. weeee!

                        I was supposed to take a few in-state road trips recently but I'm a little too scared of experiencing that stomach dropping feeling of hearing your car cranking away without starting while hours away from home... we'll see.
                        Last edited by BuffaloRider; 10-10-2013, 08:38 PM.

                        Comment


                          #27
                          On my 91 the middle relay is the fuel pump relay, mine has the yellow labeling on the plastic casing.
                          Vic

                          ~ 1989 MGM LS Colony Park - Large Marge
                          ~ 1998 MGM LS - new DD
                          ~ 1991 MGM LS "The Scab"
                          ~ 1991 MGM GS "The Ice Car"

                          Comment


                            #28
                            90/91 should have the same relay bank as the aeros. driver side fender up near the brake booster. The squarish black box with a small hang-on 3-relay box on it. should have the ECC, fuel pump, and AC-WOT cutout relays along with the ECC protection diode. IIRC, the fuel pump is the middle one.

                            Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
                            rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

                            Originally posted by gadget73
                            ... and it should all work like magic and unicorns and stuff.

                            Originally posted by dmccaig
                            Overhead, some poor bastards are flying in airplanes.

                            Comment

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